Dice notation
2d81
- 2d81
- 2 to 162
- mean 82
- mode 82
Rolling 2d81 gives a total between 2 and 162, with a mean of 82 and a standard deviation of 33.0656. There are 6,561 equally likely ordered outcomes, and the most likely total is 82 at 1.235%.
The canonical address for this page is /2d81.
The roll
Notation2d81
Dice2
Faces per die81
Minimum total2all 2 dice showing 1
Maximum total162all 2 dice showing 81
Distinct totals161
Mean82n(f + 1)/2 + modifier, exact
Variance1,093.33333333n(f² − 1)/12, exact
Standard deviation33.06559138≈
Counting the outcomes
Ordered outcomes6,56181^2, every die distinguishable
Most likely total82
Chance of that total1.234568%≈
Ways to roll it81exact count
Chance of the minimum0.01524158%≈1 in 6,561
Chance of the maximum0.01524158%≈1 in 6,561
Shape of the distribution
161 distinct totals, too many to list individually.
1st percentile12≈1.006% of rolls are this or lower
5th percentile27≈5.35% of rolls are this or lower
25th percentile58≈25.194% of rolls are this or lower
50th percentile82≈50.617% of rolls are this or lower
75th percentile106≈75.674% of rolls are this or lower
95th percentile137≈95.046% of rolls are this or lower
99th percentile152≈99.162% of rolls are this or lower
Chance of rolling at least
1897.9271%≈
4287.5019%≈
8250.6173%≈
12213.123%≈
1462.332%≈
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Also reads as
#002D81 (colour)
- #002D81
- Blue
- Dark
- Nearest: Midnight blue
#002D81 is a blue with RGB values 0, 45, 129 and HSL 219°, 100%, 25%. It is a dark colour, so white text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.
Colour values
#002D81#002D81
HEX#002D81
RGBrgb(0, 45, 129)
RGB (0–1)0, 0.1765, 0.5059
RGB percentages0%, 17.6%, 50.6%
HSLhsl(219.1, 100%, 25.3%)
HSV / HSBhsv(219.1, 100%, 50.6%)
CMYK100%, 65.1%, 0%, 49.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,649
CSS custom property--colour: #002D81;
Brightness & contrast
Relative luminance0.03462WCAG 2.x, 0 is black and 1 is white
Perceived brightness55.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.41:1
Contrast with white12.41:1WCAG normal text: AAA
Contrast with black1.69:1WCAG normal text: Fail
Greyscale equivalent#292929
Inverted#FFD27E
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.41:1WCAG large text: AAA
Contrast with black, large text1.69:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#815400
Analogous#006E81, #130081
Triadic#81002D, #2D8100
Split complementary#811300, #6E8100
Tetradic#81006E, #815400, #008113
Tints, shades & saturation
Channel breakdown
R0
G45
B129
Red0 (0%)
Green45 (17.6%)
Blue129 (50.6%)
Hue219.07°
Saturation (HSL)100%
Lightness25.29%
Dominant channelBlue
Hex per channelR 00 · G 2D · B 81
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Harmonies
Similar named colours
Nerdulate something else
Nothing in mind? Surprise me · today’s page